Streptococcus pneumonia is the leading cause of bacterial pneumonia. It can enter your lungs through inhalation or through your bloodstream. There is a vaccination for this type. Haemophilus influenzae is the second most common cause of bacterial pneumonia.
The droppings are similar in color to the wood residue that the insects spill as they eat. Subterranean termite droppings are soft and used in constructing nests, whereas drywood termite droppings are hard and look like piles of sawdust, according to Extension.org.
Cockroach Feces. Cockroaches leave feces or droppings that are easily identifiable. The feces of small cockroaches are black and resemble ground coffee or black pepper. Larger cockroaches leave black or brown droppings which are cylindrical in shape and have ridges down the side.